Results 231 to 240 of about 7,645,878 (307)

Decision Rules for Decision Tables with Many-Valued Decisions

2011
In the paper, authors presents a greedy algorithm for construction of exact and partial decision rules for decision tables with many-valued decisions. Exact decision rules can be over-fitted, so instead of exact decision rules with many attributes, it is more appropriate to work with partial decision rules with smaller number of attributes.
Igor Chikalov, Beata Zielosko
openaire   +2 more sources

Pansystems decision making on tables

Kybernetes, 2009
Purpose – Tables are widely used to store information. It belongs to table decision making to choose the pivotal fields or partition fields into conditions and decisions to discover their causality. This paper is intended to list the basic operations to achieve the aims and to explore possible solving methods.Design/methodology/approach – Methods, to ...
Xiaoxia Li, Xingcheng Liu, Xuemou Wu
openaire   +2 more sources

On the emulation of flowcharts by decision tables

Communications of the ACM, 1982
Any flowchart can be emulated by a decision table, whose complexity depends on that of the flowchart. It may be necessary, however, to introduce a new control variable with associated tests and sets or to permit changes in execution sequences provided action-test independence holds.
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Decision tables in Algol 60

BIT, 1968
This paper defines an extension to Algol 60, which allows the programmer to write decision tables in his Algol program. A pre-processor converts the decision tables to Algol, and its output is used as input to the ordinary Algol compiler. The generated Algol program uses a straight-forward and efficient algorithm for choosing the appropriate decision ...
openaire   +1 more source

Decision tables in Algol 68

Software: Practice and Experience, 1981
AbstractTwo methods for extending Algol 68 to handle decision tables are described. One method allows an extension to Algol 68 to handle limited entry decision tables while the other method, which involves the use of a preprocessor, extends Algol 68 to handle mixed entry decision tables.
openaire   +1 more source

On Constructing Semantic Decision Tables

2007
Decision tables are a widely used knowledge management tool in the decision making process. Ambiguity and conceptual reasoning difficulties arise while designing large decision tables in a collaborative environment. We introduce the notion of Semantic Decision Table (SDT), which enhances a decision table with explicit decision semantics by annotating ...
Tang, Yan, Meersman, Robert
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Decision Trees and Reducts for Distributed Decision Tables

2006
In the paper greedy algorithms for construction of decision trees and relative reducts for joint decision table generated by distributed decision tables are studied. Two ways for definition of joint decision table are considered: based on the assumption that the universe of joint table is the intersection of universes of distributed tables, and based ...
openaire   +1 more source

Accelerating incremental attribute reduction algorithm by compacting a decision table

International Journal of Machine Learning and Cybernetics, 2018
Wei Wei, Peng Song, Jiye Liang, Xiaoying Wu   +3 more
semanticscholar   +1 more source

Reducts in Incomplete Decision Tables

2005
Knowledge reduction is an important issue in data mining. This paper focuses on the problem of knowledge reduction in incomplete decision tables. Based on a concept of incomplete conditional entropy, a new reduct definition is presented for incomplete decision tables and its properties are analyzed.
Renpu Li, Dao Huang
openaire   +1 more source

Three-layer granular structures and three-way informational measures of a decision table

Information Sciences, 2017
Xian-Yong Zhang, Duoqian Miao
semanticscholar   +1 more source